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What is the difference between a DC shunt and a series motor?

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What is the difference between a DC shunt and a series motor?

A series motor respond by decreasing its speed with small increase in current for a given load torque. A shunt motor holds its speed nearly constant with large increase in input current for same amount of load torque.

What is a compound DC motor?

A compound DC motor connects the armature and fields windings in a shunt and a series combination to give it characteristics of both a shunt and a series DC motor. This motor is used when both a high starting torque and good speed regulation is needed.

What is the advantage of a compound motor over a shunt motor?

More flux will mean more torque and reduced speed as compared to the shunt DC motor. A compound motor can also be run at no load, and it will not be destroyed due to very high speed as the case present in the series motor. The compound motor has a specific no-load speed.

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How do I know if my motor is shunt or series?

Shunt motor has the field voltage equal to the armature voltage. Series motor has the same current in the field and armature.

Where is DC compound motor used?

Applications. Cumulative compound wound motors are virtually suitable for almost all applications like business machines, machine tools, agitators and mixers etc. Compound motors are used to drive loads such as shears, presses and reciprocating machines.

What are the disadvantages of compound Motors?

Disadvantages of Compound Motors

  • Operation and maintenance cost of DC motors are expensive.
  • DC motors unable to operate in hazard situation where spark occurs at the brush of the motor.
  • In generally Every DC motor using brushes so the lifetime of such motors is less compared with AC motors.

What are types of DC compound motor?

The types of compound excited DC motor are Short Shunt Motor, Long Shunt Motor, Differential Compound, Cumulative Compound.

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What are the characteristics of DC shunt motor?

Characteristics of a DC Shunt Motor:

  • Speed-Armature Current Characteristic:
  • Torque-Armature Current Characteristic:
  • Speed-Torque Characteristic:
  • Break in Field Circuit of a DC Motor: